Speed measuring device



FIG. 1 is a front perspective view of a speed measuring device showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines shown are included for the purpose of illustrating the unclaimed portions of the speed measuring device and form no part of the claimed design. 

CLAIM The ornamental design for a speed measuring device, as shown and described. 